Electrodeless discharge lamp

Details Electrodeless discharge lamp Electrodeless discharge lamp

1985-11-12

1987-03-24

DeMeo, Palmer C.

Electric lamp and discharge devices

With optical device or special ray transmissive envelope

Polarizer or special ray transmission

313634, 313636, 315248, 315150, H01J 6130, H01J 6154

Patent

active

046527907

ABSTRACT:
An electrodeless discharge lamp having an ultraviolet radiation transmission envelope containing a plasma-forming medium. The envelope is formed from two different types of quartz, one of which blocks transmission of ultraviolet radiation 253 nm and shorter, and the other of which transmits radiation of 253 nm or shorter. The quartz which transmits the short wavelength radiation serves as a window for transmitting into the envelope ultraviolet having a wavelength short enough to initiate ionization of the plasma-forming medium within the envelope.

REFERENCES:
patent: 2326773 (1943-08-01), Floyd
patent: 2757305 (1956-07-01), Dziergwa
patent: 3451579 (1969-06-01), Bishop
patent: 4185228 (1980-01-01), Regan
patent: 4307315 (1981-12-01), Meulemans et al.
patent: 4359668 (1982-11-01), Ury

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